My iMac is very hot

Hello,
I have a late iMac
Modellnamn:          iMac
  Modellidentifierare:          iMac12,2
  Processornamn:          Intel Core i7
  Processorhastighet:          3,4 GHz
  Antal processorer:          1
  Totalt antal kärnor:          4
  L2-cache (per kärna):          256 K
  L3-cache:          8 MB
  Minne:          4 GB
  Boot ROM-version:          IM121.0047.B1E
  SMC-version (system):          1.72f2
  Serienummer (system):
  Maskinvaru-UUID:
(im from Sweden)
Well, when I watch movies or play some games my computor gets really hot, almost as I can burn if I hold for a few seconds.
Since I don't know much about computor, specially since this is my first Mac. Is it the Fans not doing thier job, can I perhaps "make" them go faster or anything.
Yea so if it helps I downloaded some program that shows my temperatures, now its down to 44 but it was up to 50 before I started looking.
Thanks in advance.
Jocke

Yes there is smcFanControl 2.2.2 released, but you really need to use caution to first make sure that your air intakes are clean and free from any dust or lint buildup.
I have a 2006 iMac that has been using smcFanControl for years. I only run the fan speeds up just high enough to control the temp's and vacuum out the air intakes faithfully every 3 month. It has never ran hot or been in for service and I feel that that is the reason that the graphic's chip and display are still alive today.

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